Recrystallization and Related Phenomena. Texture Evolution during Cold Rolling and Recrystallisation of IF Steel with a Strong {111} Hot Band Texture.

• Eloot Karel

  On leave from the Laboratory for Iron and Steelmaking, Universiteit Gent

• Okuda Kaneharu

  Technical Research Laboratories, Kawasaki Steel Corporation

• Sakata Kei

  Technical Research Laboratories, Kawasaki Steel Corporation

• Obara Takashi

  Technical Research Laboratories, Kawasaki Steel Corporation

Bibliographic Information

Other Title

• Texture evolution during cold rolling and recrystallisation of IF steel with a strong {111} hot band texture

Abstract

For a new industrially processed, hot rolled Ti+Nb IF steel, finished in the ferrite region and subsequently annealed, the texture development during cold rolling and annealing is investigated. The strong hot band texture is of the {554} <225> peak type. During cold rolling, the absolute maximum shifts from {554} <225> to {111} <112> along the ε-fibre and the local maximum along the α-fibre shifts from {111} <110> to {223} <110>. During recrystallisation, the weaker α+stronger γ-fibre cold rolling texture is transformed to a very strong γ-fibre annealing texture. Hereby, {111} <110> and, to a much lesser extent, {554} <225> develop at the expense of {111} <112>. Orientation Imaging Microscopy (OIM) reveals that γ-fibre grains nucleate and grow in the beginning of recrystallisation by consuming γ-fibre components of the deformed matrix. Already after 23% recrystallisation, the texture of the recrystallised grains is very similar to the one obtained after full recrystallisation. Moreover, {111} <110> grains are found to be larger and more numerous than {554} <225> grains. The former therefore have an advantage over the latter for consuming the partial α-fibre grains during the final stage of recrystallisation and for further development during grain growth. As a result, a very strong {111} <110> peak type annealing texture is obtained in the present material, resulting in extremely good deep drawability.

Journal

• ISIJ International

  ISIJ International 38 (6), 602-609, 1998

  The Iron and Steel Institute of Japan

Keywords

• texture
• cold rolling
• recrystallisation
• IF steel
• EBSD
• OIM

Details

• CRID: 1390001206452903680
• NII Article ID: 10002459864
• NII Book ID: AA10680712
• DOI: 10.2355/isijinternational.38.602
• ISSN: 13475460
• ISSN: 09151559
• Web Site: http://www.jstage.jst.go.jp/article/isijinternational1989/38/6/38_6_602/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed